When you want to get the permissions list from a mailbox calendar or want to set permissions but you get below error.
The operation couldn’t be performed because ‘User@domain.com:\calendar’ couldn’t be found.
+ CategoryInfo : NotSpecified: (:) [Get-MailboxFolderPermission], ManagementObjectNotFoundException
+ FullyQualifiedErrorId : [FailureCategory=Cmdlet ManagementObjectNotFoundException],Microsoft.Exchange.Management.Store
This is because the mailbox language is not English and the Calendar folder name has changed.
You can simply get the language of mailbox using below command.
Get-Mailbox User@domain.com | select Languages
Then based on the language, you can change the name of Calendar folder, in my case it should be “Kalender”.